4. Type: High yield with SHOW ACCURATE INK level & UPDATED CHIPS (Aug 5th, 2016) remanufactured pigment ink cartridge, use ORIGINAL INK to refill, performance as ORIGINAL product, remanufactured by QINK (Updated chips can work for firmware: the latest LWP1CN1548AR or LZP1CN1548AR or LWP1CN1502B and other old versions)